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We have been working on number search for a long time, numbers from the 636 areacode often come up with a warning.
The office is based in Saint Charles and if you drop in for a coffee we can try and find the Caller Name. AT&T Southwest operate these numbers and often help us.
This group of numbers covers a wide range of over 360485 people in Missouri.
Recently we've seen an increase in Regular Landline callers using these numbers for scams so be careful.